So I was at the track (VIR - a road course, not a drag strip) this weekend. 85-90 temps, sunny and hot. This is the first time I've run with my Defi sensors.
Anyway, my water temps were in the 200-215 range, never over 215.
My OIL temps, however, were going mad! I was seeing 245 most of the time, and then later in the weekend, up to 265. That seemed awful high to me (especially since the blow-up prone RX7's are running 210-220 oil temps).
Any help as to:(1) what the temps would/could/should be when reving the car very high for about 20 minutes or so straight(2) has anyone run an oil cooler, and where'd you put it?(3) why the hell a normally aspirated motor is seeing those kind of temps?
(oh, I hope this is a good section to post this in - if not just let me know)
Thanks in advance!joe
oil temps
Seems to me the water temp is a little on the high side also, just a little. After beating on my car for close to an hour water temps never exceeded 190, closed throttle-WOT-closed throttle WOT...etc etc. Stock radiator/fans, new water pump and thermostat. Your oil temps could be a result of your water temps.
Quote »closed throttle-WOT-closed throttle WOT[/quote]
What were you doing for that????? Was this track time or on the street???
I dunno why anything would be wrong for me to get higher temps than anyone else. The car has < 50k on it, the coolant is perfectly clean. Fans in working order. I even ran with the A/C fan on (pulled the AC compressor relay). It didn't help. At an average speed of 80mph over the track, tho, the fans are not helping much.
Even so, the difference in oil temps vs water temps is about 45-50 degrees. Street driving, even hard on the car street driving, the water temps AND the oil temps never went above 190. And the water temp was always only 1-3 degrees off of the oil temps.
joe
What were you doing for that????? Was this track time or on the street???
I dunno why anything would be wrong for me to get higher temps than anyone else. The car has < 50k on it, the coolant is perfectly clean. Fans in working order. I even ran with the A/C fan on (pulled the AC compressor relay). It didn't help. At an average speed of 80mph over the track, tho, the fans are not helping much.
Even so, the difference in oil temps vs water temps is about 45-50 degrees. Street driving, even hard on the car street driving, the water temps AND the oil temps never went above 190. And the water temp was always only 1-3 degrees off of the oil temps.
joe
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Q45tech
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- Car: 1990 Q45 342,400 miles 22 years ownership with original engine
1995 G20t 5 speed 334,000 miles 16" 2002 wheels - 205/50/16 Sr20ve vvl
Nissan ecu have an ignition retard based on coolant temperatures.On some it is up to 1 degree per 5F, starting at 195.0F........this maxes out at 5 degrees less at 215.0F. Designed to compensate for rising engine octane requirements with coolant temp----reduce the propensity to knock starting.
Generally the oil temp is designed to run 20F above the coolant say 215-220F..........just enough to evaporate the condensed moisture in the oil.
Using higher than standard visocity and conventional oil??
Generally the oil temp is designed to run 20F above the coolant say 215-220F..........just enough to evaporate the condensed moisture in the oil.
Using higher than standard visocity and conventional oil??